Research on concrete membrane of hollow - fibber for oxygen enrichment 中空纖維富氧復(fù)合膜的研究
Temperature characteristic of a kind of hollow - fibber membrane module used for oxygen enrichment 一種富氧中空纖維膜組件的溫度特性
Membrane technology of oxygen enrichment has been widely used for combustion assistance 摘要膜法富氧及其助燃技術(shù)的應(yīng)用非常廣泛。
Several factors affecting the melting of silica flux , such as the size of silica flux , matte grade , blowing air and oxygen enrichment were discussed 主要考察了熔劑粒度、冰銅品位、鼓入氣體流量和氧濃度對石英溶劑熔化的影響。
The advances of the application of membrane technology of oxygen enrichment in glass kiln , boiler , evaporator boiler , hot - blast furnace , medical care , and fcc oxygen - rich regeneration are described in details 主要介紹了膜法富氧技術(shù)在國內(nèi)玻璃窯、鍋爐、注汽爐、熱風爐、醫(yī)療保健和fcc富氧再生等方面應(yīng)用的最新進展。
The results showed that the melting ratio of silica flux decreases and the complete melting time prolongs with the size of silica flux and matte grade increasing , and the effect of the blowing air and oxygen enrichment is not remarkable in the high grade copper matte converting process 對于高品位冰銅轉(zhuǎn)爐吹煉,鼓入氣體流量和氧濃度對石英熔劑熔化率影響不顯著;熔劑粒度和冰銅品位對熔化率影響顯著,并隨著熔劑粒度和冰銅品位的增加,熔劑熔化率降低,完全熔化時間延長。
The n type carrier was provided by interstitial zn atom , and zn / o ratio and crystalline quality of zno thin film effeted its hall mobility . when zno thin film was annealed in the ar ambience , p conduction type was founded in the zno thin film which grew in oxygen enrichment condition . this might be excess oxygen in zno thin film entered interstitial position of crystal lattice ( oi ) , and p type carrier was from oi 在ar氣保護下,對富氧條件下生長的zno薄膜的退火后的霍爾測量中發(fā)現(xiàn), zno薄膜呈現(xiàn)p型導電狀態(tài),分析認為,這可能是由于富氧狀態(tài)下生長的zno薄膜中過量的o在ar氣保護下退火沒有逸出薄膜,反而進入了zno薄膜的間隙位置,成為正電中心,使zno薄膜呈現(xiàn)p型導電。
The hazards associated with liquid oxygen are exposure to cold temperatures that can cause severe burns ; over pressurization due to expansion of small amounts of liquid into large volumes of gas in inadequately vented equipment ; oxygen enrichment of the surrounding atmosphere ; and the possibility of a combustion reaction if the oxygen is permitted to contact a non - compatible material 同液氧相聯(lián)系的危險有:會導致嚴重凍傷的低溫暴露;在通風不充分的設(shè)備里,小量液體汽化成大量氣體造成的過壓;周圍空氣的氧富集;如果氧接觸到不相容的材料而發(fā)生燃燒反應(yīng)的可能性。